Sulky-weeder.



PATENTED AUG. 2, 1904.

G. B. DAVISON.

SULKY WEEDBR.

APPLIOATION FILED 00111. 1902.

3 SHEETS-SHEET 1.

N0 MODEL.

ha H H H "DU HE E "HE QQYTTONEYS.

WITNESSES:

No. 766,603. PATENTED AUG. 2, 1904. G. B. DAVISON.

SULKY WEEDER.

APPLIOATION rmm 00111. 1902.

3 SHEETS-SHEET 2.

H0 MODEL.

No. 766,603. PATENTED AUG. 2, 1904.

G. B. DAVISON.

SULKY WEEDER.

APPLICATION FILED 0012.11. 1902.

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W/rNEssEs,

UNITED STATES Patented August 2 1904.

PATENT OEEIcE.

SULKY-WEEDER.

SPECIFICATION forming part of Letters Patent No. 766,603, dated August 2, 1904.

Application filed October 11,1902. Serial No. 126,855. N0 model.)

To (all 7071/0711, it may concern:

Be it known that I, G cones BENN nr'r DAVI- SON, of Utica, in the county of Oneida, in the State of New York, have invented new and useful Improvements in Sulky-l/Veeders, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to a sulky-weeder.

The object of this invention is to produce a simple, compact, and efficient machine which is not only adapted for weeding, but is also employed to rake in or cover the seed.

Another object is to mount the device upon suitable supporting-wheels arranged in advance of the teeth, so that the wheels do not travel over the weeded ground.

Referring to the drawings, Figure 1 is a top plan of a sulky-weeder embodying the various features of my invention. Fig. 2 is an enlarged side elevation of the parts seen in Fig. 1. Fig. 3 is a detail view of the rocking support for the tooth-frame. Fig. 1 is a top plan of one of the axle-stubs and portions of the tooth-supporting bars, showing particularly the connecting-brace between the stub and one of said bars. Figs. 5, 6, and '7 are sectional views taken on line 5 5, 6 6, and 7 7, Fig. 4:, the wheel-hub and brace being omitted.

Similar reference characters indicate corresponding parts in all the views.

As seen in the drawings, this invention comprises a pole 1, a transverse frame-bar 2, rigidly secured to the pole and having its opposite ends provided with axle-stubs 3, suitable wheels 4 journaled upon said stubs, a toothsupporting frame 5, and teeth 6, mounted upon said frame.

The general arrangement of the various parts of this machine is symmetrical-that is, the supporting-wheels a are arranged in front of the tooth-supporting frame 5 substantially midway between the opposite ends of said frame, and the pole is arranged substantially midway between the wheels 4 and secured to the central portion of the frame-bar 2, and therefore is also practically midway between the opposite ends of the tooth-supporting frame, so that the line of draft is at substan tially right angles to the tooth-supporting frame and practically midway between its op posite ends, and the connections between the pole and tooth-supporting frame are so arranged as to distribute the strain evenly throughout the entire length of said frame.

The frame-bar 2 is arranged in front of and substantially parallel with the tooth-supporting frame 5 and is secured to the pole 1 bya suitable bolt 9 and brace-bars 10, the bracebars 10 having their rear ends secured by bolts 11 to the opposite ends of the bar 2 at the opposite sides of the pole and the front ends of said bars are secured by a bolt 12 to the under side of the pole in front of the bar 2, thereby firmly tying the pole 1 and bar 2 to each other and stiffening the parts against latera'l strain. The bar 2 is of considerably less length than the tooth-supporting frame 5 and usually consists of a channel-iron having its open side at the bottom for receiving the stubs 3, which are inserted into the opposite ends of the channel of the bar 2 and are held in position by the bolts 11 and additional bolts 13, which are passed through apertures in the upper wall of the bar 2 and inner ends of the stubs 3, and thereby firmly secure the stubs in place, the inner ends of the stubs being adapted to closely (it between the front and rear walls of the channel, and the bolts 11 and 13 are therefore relieved from much of the strain which would otherwise be transmitted thereto. These stubs 3 project beyond the opposite ends of the bar 2 a sufiicient distance to receive the wheels 4 and suitable bearings 14, which are journaled on the outer ends of the stubs and are connected by brace-bars 15 to the tooth-supporting frame 5, so as to permit the brace-bars and frame 5 to be rocked vertically on the stubs, the wheels 4 and bearings 14 being held in operative position by cotter-pins 16, passed through apertures in the axle-stubs 3 outside of the bearings 14.

The wheels 4 may be of any desired size or construction and are journaled upon the stubs 3 between the opposite ends of the bar 2 and adjacent bearings 14 and serve to support the the bar 2 and rear end of pole which is mounted on said bar a uniform distance above the surface of the ground, the purpose of which will be apparent from the following description. v

It will be noted from the foregoing description that the mechanism for connecting the pole to the bar 2 and to the tooth-supporting frame is particularly simple, strong, and durable and may be manufactured and assembled at a minimum cost and that by connecting the rear ends of the brace-bars 10 to the outer extremities of the bar 2 and then connecting the outer ends of the stubs 3 to the tooth-supporting frame by brace-bars the arrangement is symmetrical and tends to equalize the strain upon all the parts of the machine. It is also obvious that by arranging the supporting-wheels in front of the tooth-supporting frame the ground is leftin a smooth and finely cultivated state without the usual tracking of the wheels, as would be the case if the wheels were arranged at the rear of the weeder. I have found in practice that this arrangement of the wheels in front of the weeder enables me to build the machine more economically and at the same time admits of a freer vertical movement of the tooth-frame in throwing the teeth into and out of operative position.

The forward ends of the brace-bars 15 are secured by a bolt 17 to the bearing 14 at the rear of the axle-stubs 3 and diverge rearwardly toward the tooth-supporting frame 5, being secured thereto by bolts 18, this arrangement of the bars 15 serving to further distribute the strain and forms a simple and convenient means for tying the tooth-supporting frame to the axle-stubs.

The tooth-supporting frame 5 preferably consists of front and rear transverse bars 19 and 20, which are arranged parallel with each other at substantially right angles with the line of draft, the bar 19 being connected directly to the rear ends of the bars 15 by the bolts 18, and the rear bar 20 is connected to the bar 19 by tie-bars 21, arranged at suitable intervals throughout their entire lengths.

The front bar 19 usually consists of an angle-iron having one of.its flanges disposed in a horizontal plane and itsother flange depending from the rear edge of the horizontally-arranged flange, the depending flange and also the bar 20 being each provided with a series of alined apertures for receiving the teeth 6, the front ends of said teeth being secured in the angles of the bar 19, and the bar 20 is adjustable toward and away from the bar 19 for regulating the degree of spring of the teeth 6, this adjustment being effected by means of apertures 22, formed in the bars 21 and adapted to receive bolts 23, which secure said bars 21 to the angle-iron 19.

It is apparent from the foregoing description that the weeder-frame is free to rock vertically, and the means for effecting this rocking movement preferably consists of a rocking support 24:, a lever 25, and a link 26, the

rocking support 2 1 being pivotally mounted at 27 upon the rear end of the pole 1 and is provided with rearwardly and upwardly eX. tending arms 28 and 29, the rear end of the support 24 being bifurcated for receiving the horizontai flange of the bar 19 and engaging its upper and lower faces, and the upwardlyextending arm 29 is provided with a slot 30 for receiving the rear end of the link 26. This rear end of the link 26 is adjustable lengthwise in the slot 30, being provided with a stopshoulder 31 and a series of apertures 32 for this purpose, the stop-shoulder 31 serving to hold the link in this position and is adapted to engage the rear faceof the arm 29.

In the front of this arm 29 at some distance therefrom is another stop-shoulder 33, between which and the front face of the arm 29 is a spring 34:, which encircles the link 26 and serves to hold the rocking support 2& and tooth supporting frame engaged thereby downwardly under a yielding pressure, which permits the teeth to ride over obstacles without liability of unduly springing the teeth or otherwise impairing the tooth supporting frame.

The lever 25 is pivotally mounted at 35 to a tooth-rack 36, which is mounted upon the pole 1 a considerable distance in front of the rocking support 24: and is engaged by a pawl 37 for holding the lever in its adjusted position.

It is apparent from the foregoing descriprocking the tooth-supporting frame upon the axle-stubs 3, which form the pivotal bearings for the tooth-supporting frame.

Secured to the pole 1 and rising therefrom between the rocking support 2 1 and lever 25 is a suitable seat 38, and in front of this seat and also secured to the pole are foot-rests 39, the purposes of which are well understood, and thereforeit is believed to be unnecessary to further illustrate or describe the same.

The parts of my invention constitute what may be termed a sulky-weeder, in which the disposition of the sulky-frame in front of the tooth-supporting frame is an important feature, owing to the fact that the tooth-supporting frame is capable of greater vertical adjustment than would be possible if it were supported in front of the Wheels of the sulkyframe. Another important feature of this arrangement is that when the device is used either for weeding or for light harrowing the ground is left in a smooth condition free from wheel tracks. 1

I have discovered in the practical operation of a weeder that aside from its utility in removing and destroying weeds a light harrowweeder with a seed-distributer 7, arranged in advance of the digging-points of the teeth, or rather interposed between said points and the wheels 4, so that after the seeds are distributed the teeth serve to rake the soil over the seed and to leave the ground in a finely-cultivated condition.

The operation of my invention will now be readily understood upon reference to the foregoing description and the accompanying drawings.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a sullty-weeder, the combination with a pole and a transverse bar rigidly secured thereto, of axle-stubs secured to the opposite ends of the bar, wheels journaled on said stubs, brace-bars pivotally connected to the stubs at the outside of the wheels and extending rearwardly beyond the wheels, a toothsupporting bar parallel with and of greater length than the transverse bar and rigidly secured to the rear ends of the brace-bars, a

rocking support pivotally mounted on the pole and engaged with said tooth-supporting bar to raise and lower the same, a hand-lever connected to rock said support, a second toothsupporting bar connected to and adjustable toward and from the former bar for the purpose described, and teeth mounted on said tooth-supporting bars.

:4. In a sulky-weeder, the combination with the wheels and axle-stubs therefor, of parallel tooth-supporting bars at the rear of the wheels and extending laterally beyond the wheels, braces rigidly secured to one of the bars and pivotally connected to the axle-stubs outside of the wheels, a rock-arm engaging the central portion of one of the bars to elevate the same, means to rock the arm, and teeth mounted on the bars.

In witness whereof I have hereunto set my hand on this 26th day of September, 1902.

GEORGE BENNETT DAVISON.

WVitnesses:

EDNA MAY BARTON, C. B. KIMBALL. 

